Cutting and scraping device



Aug. 10, 1943. H. F. SIEG CUTTING AI ID SCRAPING DEVICE Filed Oct. 17,1940 mvENTOR Patented Aug. 10, I943 ED- STA ES PATENT erries r 7 2 7 Icomma-Ann scnsirnensvtcs L Herina:n F. Sieg, Pittslnn'g hfllan menswear17, rest, Serial No. sci-gees scraping device, and particularly toaislieet metal holder adapted to receive a razor blade and to formtherewith ,a conven-imt, and. l nen pensive means for removing adheringmateriel-ls such 'aspaper, adhesiveoetc. fromg lass, Wall; wood andother-sur'facesp k Devices are-at present available whieh hold razorblades and which form devices-cf the sa ine general type or characterasthat forming, the basis for my present invention. Such-Edevice's,while reasonably satisfactory, are from being idea-l or foolproof intheir construction and leave much to be desired in the way of length-oflife, safety in "use and versatility of applicability. lviost razorblade holders embody .parts which are :dificult to keep clean or sterileand which usually involve the use' of screw shafts and nuts fortightening and clampin purposes. Many-of the devices of this naturewhich areintended :for use with ol'o1.1b.l'e--edged blades having-open'ings through the body thereof requ-i-re' speciel loss orprojections to be fiormedon or inthe holder in order to secure evenreasonably firm positioning of the blade. These holders are'onlyzadapted-for use with one specific type of blade. -T-hey;a r especiallycharacterized by the fact that-th(-: y;fre v quently cannot be used innarrow or cramped spaces and must always be used on only one side V dueto the 'p-rojectingwscrews, nuts, etcnon the other side andwhich wouldundesirably scratch, score or'otherwise mar the surfaces being Workedupon. It is thus apparent that there is ho 6 :6.

vice available or known which meets all the requirements of a commercialarticle of this charsame be glass, motel, Wood or other material.

A- :f-urther objectof the invention resides in producing a cutter andscraper which can be manufactured at nominal cost and which cantherefore be sold in the live and tenfeent stones or other chain storesfor a price considerablyihev 7 low that at which existing holdersarescld;

A still further object of the invention resides in providing a cutterand scraper in which a razor blade can be firmly and adequately held andpositioned during the cutting or scraping ati ve z-li osition thereoperationan'dyet:Without providing extra or 5 special projections, screwpartsy etor or: upon the device itsel i.

. a ther and iurtherlobiect's be understood by those shilled in heapparent or pointed cu Il'l the accompenying'di a device embodying my=pre ent invention:

is a plan "v iei of. an embodiment of the invention showing a?cutie-edged lslade in oper -hereinsit-c r-. 1

Fig. 2 is aniedge elevetional viewi of the device ofFigulyand T Sisaifragniestazf,enlarged, disassembled 1L2 portiozifof cl supnleperspective view of the blade-hold; the device of Figs; :T'filiid 2;fined merits-l terengagzingfmeens. la'r numerals corresponding partsthroughout theseveral views-o fthedrawing V r. The deviceofitliisinvention broadly includes a meiiiberwhich has pexrt's'adaitetlto be cohtrsicted or compressed intoengagenient' with a "r-a2.or

Blade, partsiengag in uoh bled-era holding sueheparts p'ereti' .clmean's "for association under such'condzitionstheit tr ple andrehdy'di'sassembly is made:possi-lzile. l

' ofi-th'is-iiivention at a veryTlow-cost and inaiweiy gage, icomposition and physical 'cha-rect istic's is stamped, die out "orotlfierwise -sh'ep'sd' formed into the configuration onetime-s. 'rissopro duoed; the device comprises twoisirb'stantially parallel a-rms 28'of sheet metal ccn'necteolat"ad= iace'nt ends by a simple, U shaped bentor curved portion 2!. This portion, as 'wel-l asthe nature of the metalitself, contributesfithe"necessary' springiness or resiliency which isrequred'thsrein. Near their forward-or blade nolding ends t e "arms 120con-verge rapidly as at 22, beyond which they again become substantiallyparallel; transition portions which connect 1 and-the holdingiortions-23." 1

' As will best b appreciatedhy areierence-to 7 Fig. 3. one arm 29 isprovi-dedwiths. .T shapedj opening -2 4 just rearwardly ofthe terminusoirthe main :paral lel portion --the reof-; C This'g l shepe'd slot hasits cross-fhar portion 25; disposed; f the arm; i.:e.; the major axisthereof is at rigparallel to thearm 29 itself.

is art or will awing l'have illustrated 25 of the slot 24 are depressed,being bent inwardly and downwardly and therefore forming a depressedseat, the purpose of which will be explained hereinafter. Viewed fromthe side, as in Fig. 2, it will be noted that this seat is below thelevel of the arm and is inclined upwardly from [front to rear, i. 1e,toward the blade-holding portion of the arm. The terminus of this arm isa flat, marginal portion 28 which is connected by a T-shaped lockingelement 3| which rises substantially vertically from such arm. Atrapezoidal opening 32 is thereby formed in such arm asa result of theremoval of material therefrom for the locking member to move forwardlyto the narrow portion described and to seat itself as described. In thiscondition the device is ready for use, and by observing Fig. 2especially it will be noted that there is little or no projection of thelocking element. above the surface of the slotted arm. Thus the devicecan be employed without respect to a top or bottom, thereby enabling theobjects and advantages hereinabove set forth to be achieved; Theinsertion of a double-edged blade is the same as that described for asingle-edged blade, and it will be apparent 7 that in employing adouble-edged type of blade the formation of the element 3|, the opening32 i being a trapezoid rather than T-shaped due to the fact that it isgenerally preferable from a production or mechanical point of view. tostrike up an initially trapezoidal piece and then to shap or notch outthe same to produce a T-shaped element. as to provide a complementaryfiat marginal portion 33 adapted to form with the marginal portion 28 ofthe other arm a pair'of Jaws or pincers. The lateral ends of thisportion 33 are, however,

bent upwardly at right angles to provide short :3

lateral upstanding flanges 34, the distanc between the inner sides ofwhich is only slightly greater than the length of the said marginalportion 28. The arm terminus is further provided with a concave-convexintermediate portion 35, I

which, however, is the reverse of that of 29 so thatthe concave sides ofthese two portions face each other and the convex sides are accordinglyon the outside surfaces of the pincers. This portion of arm 20 hasarearwardmarginal-portion 36 which is somewhat dished or depressedin adirection opposite in curvature to the portion 33 already mentioned sothat inthe contacting posi tions of portions 28 and 33 a more or lessuniform space is formed within which is adapted to be received andgripped the thickened edge of a singleedged blade; The ends of portion36 areflanged at 31. The rearward edge of the armterminus is providedwith thespaced upstandin flanges 38 which form a stop or limitingbarrier as well as a guard. Portions 29 and 35 will, under theseconditions, engage the forward edges of stiffener I3, thus immobilizingthe blade. Part 28 is preferably and optionally provided withprojections 28a which are adapted to seat in the notches 34a in part 34and thus form a positive interengaging supplemental means.

Thisdevice is capable of utilizing any known form of razor blade. Inusing the single-edged type Qfblade, the pincers are separated and theblade placed in such position that the stiffener l3 thereof lies in thespace which is formed between the portions 30 and 36, the twoarms beingThe terminus of this arm is soconfigured arm; whereupon the said lockingelement moves forwardly and bar 39 seats itself on-the depressed 7 seatalready describe'd. The parts are so constructed and arranged that thetendency is for the blade is inserted until it abuts the spaced flanges38 on therearward edge of the portion 23 and that the portions 28 and 33engage the same and hold it sufiiciently firmly for the desired cutting,scraping or other operations. The flanges 34 prevent side slip of alltypes of blades and the flanges 38 act as guards to prevent inadvertentdamage by the rearward edgeof a douend by a suitable unitary bend andconverging at'their distal ends to form a pincer-like portion, said armshaving interengaging' portions formed therein for maintaining thepincer-like portion in a condition which is adapted to immobilize asuitable cutting and scraping element when placed therein; saidinterengaging portions including a T-shaped slot in one arm and asubstantially T-shaped projection in the otherarm, saidslot being soformed that its cross-bar portion is" transverse to the major axis ofits arm and the triangular portions between the bar extensions and thestem thereof are inwardly and.

downwardly shaped to form a seat below the level ofsald arm. V 2. Acutting and scraping device composed of sheet metal having a bodyportion composed of a pair of substantially parallel arms connected atone end by a sheetmetal bend and having their distal ends formed toprovide a pincer-like portion for receiving and holding a razor blade,said'pincer-like portion being made-up of a pair of elements one ofwhich is provided with a flat marginal portion, a rearward offsetmarginal portion and a'concavo-convex intermediate portion, convex sideoutward, and the other of-which is provided with a fiatmarginal portioneach end of which is bent over to provide an end flange, a rearwardmarginal portion having spaced upstanding flanges on itsrearward edgeand a concavo-convex intermediate portion therebetween, convex sideoutward, thereby forming when said members are in contact a recess forthe admission "of a blade-stiffening element and guard means forpreventing undesired rearward or lateral movement of such element.

. HERMAN F. SIEG.

